Signaling system



Oct. 13,1925. 1,557,404

C. E. BEACH SIGNALING SYSTEM Filed Jan. 7, 1920 IN VEN TOR I Patented Oct. 13, 1925.

UNITED STAT-E;

"etannnen E. BEAGH, or ninennmrenpwnw YenmAssmnen-mc mediums,

,coMrAnY; or NEw'npN, mnssacnnsnrrs, A eemeozmc xor or unssmnusnms,

S GNAMN exee ee ee eei d W? l e r N eeeieee To vall 7mm it may cmwmi 7 Be it knewn th L CLARENCE Be eH, a citizen of the United States, residing ng iemt e, eeun y. o B owne, an @t f New ei'k, 'hev'e i nted certai new e1 d-'usetul .Imp eveme f 2 S gnaling yetems'e Wh e th ellewing ie peeiie ieni This invention relates t9 signaling sys.- ms eempriei g wo o e e er i n sou ee, e d eemprie g fac it e fe ta-ininge eenetei t est t the e fee iv nei e of ee h efeeid s reee en er vinge de sired Warning in. the event of s'nbstantial pairmen the eof. Ce tain featureie t s t ent es p rt uie ly adapted for e naling sy m pr sln l We circuits, one of whieh circuits includes signe ansmittingte i ne end the et e 9 which circuits includes signal receiving ship tions, each of said circuits having a current so e ind endent of he e r, and ing. means ,ingprovided which comprises, r e amp e, e e v t en t ub e ell,

to act centinnously to direct attention to impai m nt-Q ilur of t r cem n source,- the normal so-called snperVlSOry or test current employed in such circi uts being substantially less than the cnrrent lin- P se ncident t th ra em eien Q signals.

I All a signaling system in which twoor more independent current sources, each of which i unde eene e t eet w be eipreeelly emn ey d to pera e a War ng e gnl il- Another object of this invention is to provide a signaling system comprising a transmitting device circuit and a receiving device circuit, having independent current sources fors aid circuits, arranged to maintain said sources and the current paths of sa d circuits under constant electrical test at a current yalne substantially less than that ntiL- i ed r e eene impuls s. end halv ng er es eeeeel epeib -by i her 'ef eei sour es in he event 9f f eeee han e Pred I, 7

such eu re t' eeureee o. th ether fie. 9f fie d devi egr ater than the ne el, t s thr ugh the transm ting de ice and the .re-

object of thisinvention is to provide i pu e ierm ieted by-f' y repeating m h.

. .Yante ee wi l 1 he in part was Pen lieltemeite i ep 'ei e, ly set here t e and i forth.

In eent tni ing-this nv nt je t "eu'r ent Se Pie mg meehenism enn' said i eiireee. d elops Lee; eha eeteristiee; tei'en ei tienflbetw en enethe; Jet. SeiidTSQu Ge e d [Te .he end. that Q ..P. ;eeti.en"b man Ing mechanisms may be avoided, a meal o eee 9f. sever .en ren e nne ed. t ne tmimil'e ae 111g d v ce, es ing me ha ism 'elngkl .reged te act, in reepeleee tel t e even meeit. etme e than a predeterm g 1e ree e f imp irme t 1 or. eterlf i ptien lei @1 3, exi

y e .ef Snel so s 15 a t9 "e ie t the apposi e ermi of In apply ng th s n n i n; t "sy t ms in w ic j 1. 'r. 11 impulses ineidentftofth n missi n of sie ele. are (i il be n elly eurre" 11W I s enneeted n a p ien bf t et ei emi ting device circuit is eeted 'lto the cre s cur t flew neid .tte' .ssne

of th ti e- Inittingstat-ions in pircnit'sdthwt s d termined degree of impairment in or co n- Pl e mteereptlee ei eiiere t'fl wlfrem the 1 other o said eee ee re neet elyherebi ete ere t s mp i eueh. ey

t es o en er th m mere iil ebi e M1 9 wer reliable in openaticn, and: to decrease {the .eeet ef th e s ti nand m t eene Stillets?" bieet f tegetti i ith eerie connected to a are connected in common, as just described,

tially equivalent electromotive force so that,

a terminal of an emergency warning device, the other terminal of said device being con nected to one of the contacts of each of the sets of" contacts operable. by the testing mechanism. Another contact of the set responsive to the transmitting circuit is connected to the remaining terminal of the receiving device circuit current supply, one of the-contacts of the set responsive to the receiving device circuit being correspondingly connected to the transmitting device circuit current supply.- a. q

For the purpose of enabling this invention to be more readily understood, an. embodiment thereof is shown inthe accompanying drawing and hereinafter described; but this invention is not limited to the particular embodiment therein shown andhereinafter described,as many changes may be made, and

parts may be added or omitted, without departing fromthe spirit and scope of this invention.

Referring to the accompanying drawing,

in which like reference characters denote similar parts: the signaling system shown comprlses a transmlt-ting device circulthaving a current source A, lncludmg the wlnding of a repeating relay B, connectin in parallel the transmitting stations C, C, I and closed at its far end through the testing relay D; together with a receiving device circuit having a current source E, serially including the receiving devices F, F, F,-and alternatecurrent paths controlled by thearmature of re- .fla'y' B, the, back stop of said armature establishing a current path through the winding of the receiving device test relay G, and the front stop, of said armature establishing a current path throughsaid circuit exclusive of the testing relay Gr.

Thecurrent sources A and E are represented as batteries, the terminal 21 of battery A and the terminal 22 of battery E being of the same polarity, and said terminals being connected in common to one end of the winding of relay B, to the armature-of said relay,

and to oneterminal ofthe emergency warning device or trouble bell H.

For convenience, the terminals 21 and Q2 of the respective batteries A and E, which will be hereinafter referred to as common terminals,-and the remaining terminals 23' in thevev'ent of said batteries being connected together in parallel relation, under circumtances which will be hereinafter more :fully described, there will be no substantial or maintained reverse current flow in either If substantially equal numbers of similar cells are provided in batteries A and E, it

sult from the connection of these batteries in parallel to the terminals of the trouble bell Hand to the transmitting and receiving device circuits, even if the cells of one of said batteriessufi'er deterioration which substantially decreases the discharge voltage of such cells. a

The potential of the current source of the transmitting device circuit should be such as will cause a desired current flow in such circuit whenever the relay D is shortcircuited (as by one of the transmitting stations C, O, C) so as to provide a suitable factor of safety in causing effective energization ofthe winding of'relay B. The current source forthe receiving device circuit should develop such electromotive force as will cause current flow through the receiving device circuit (exclusive of the winding of relay G) sufiicientto effectively energize, with a suitable factorof vsafety, the magnet windings of the receiving devices F, F, F. Should it be found that the electromotive force required for one of the circuits is substantially different from that required for the other circuit, a supplemental battery, such as the battery E shown connected in the receiving device circuit, may be provided in one circuit or the other, so as to afford the desired electromotive force for the operation thereof; but in any event the portions of the current sources connected between terminals I 21 and 23 and between terminals 22 and 24 of such respective circuits should be of approximately equivalent electromotive force.

The relay B should be arranged to be unresponsive to the normal test current flow in the transmitting device circuit, but should, as hereinbefore pointed out, be suitably responsive to. the current flow, in this circuit when the test relay D is short-circuitcd by any one of the transmitting stations C, C, G.

The winding of relay D should be of such resistance that, when included in the current pathof the transmitting device circuit, the normal electromotive force of the battery -A will provide a test current of the desired strength therein;. the resistor J being con nected in series with the winding of the relay D in the event of its being found inconcult; and, to permit the armatureof said reley to drop-to retracted position, inresponse to slib stantietl clecreaseiri the fectorofeefety in vthe electrqmotit'e-force ofsai-itl source;

The resistance of the *reley such resistance, the "em-rent infield cirenergizzrtion of the megnetsoff the receiving devices F, F, F; anditherelay GShedl'd t-romotive force of the current source for the receiving device circuit in *a 'menner' cor respondmg to that herembeforedBSCTlbGd for relay 3).

The trouble he'll EEI :shodld he; edited for operation by the current eom'ces A and E (hating either independently or in iparagllel) eithe-rat the max i in-um-electmmoti vei fore'e of said .sources or at lower eleotromotive lfforces such as are deemed likely to develop, incident to :the -leteriorat ion of either source, during' t-he-jeound in-gofthe bell with in a com aratively "short time fitter the" 'electromot we-iorce of either crument source has 'decrea sed to *a point which hould cause the trouble bellto Sound; 1 i 7 The-oPerat-ion of thesystem is e follows: KVh'en '0 1e system *is act rest current paths are 'efiecti ve, end the relay B is not :eifectirely energized, the releys D} and G are efieotively energized; and there is #110 current flow t lrnongh the trouble be'l l The normml Et-est otrrrent path the transmitting device eircu it iS as tal-lows? usecl') and through conductor 2 7 to "the ter "Ini'nal 23 (rt-Source A. The nermallltest current with of the reeeivi-ng device circuit extenf sv from terminal f22 of battery throughconductorj28 toiunction wirth eoncluctors 25 an'd29 fill one end o f' t he winding ofrelay B, thence through conductor 29 to armatrire of relay B, througlvsaid armature to the hack stop thereof, thence through -conductor"80 {and resistor K, if used) to one end of the Winding ott relay G, thence through said wv indlngyzfihrorrgh lcormludtor 31, afnd through fihe mjagnet windings =05? receivingdevie'es F, F; seriall lemmected- "in ma conductor (and through :supp-lementalcurrent source E, need?) towtermi 1131 '24 of battery E. I

"From'ithe forgoing it is evident ltlhat i n "the event of a hr-eel; either of the normal test current paths just hlsorihedf, the may". the tstnreiley lneludefdiim such will the fir -en rgiz d end like arm i 011:-

the mormwl test" sudh rley will the'reupon Lmoveeto azretmcted 'pos'it ion. Itfis:ailsovevidentithzrtllnttheaevent dangerous decrease in "the teledtromotive force of the current sourcerofeit her=a-circuit,

the ematureof the itestrrelaly ofsuch oir- "G'su;pp1en'1enta1, i'f neerl' be, hy the resistor Ksho'u'ld be such that, when ill-re current path of the receiyiirg device -chi oliitgi rrc'l-udes ou'it will lllrewi seqmove :to'sretrected zposl'rtion. Should the :armatureof relay ll) move to 'retracted' gposition, the trouble lhell' will sound' because dfltherestab'lishment of 1x cur- "rent peth as follows: rfrom terminal 22 0f btittery E through icondudtors28 and 29 to "the -ermature :of relay B, thencethmugh conductor 32-311mm terminal 'of tronble bell H thence from lthe rather itemiinwl :04. said bell, through conductor 33 to lax-mature of relay 1),"ithrmrgh maid-immature and the flow}; -"$UOP= other-wish hondflotor ll-34}, and lthrough fl-conductor $34 *itoatermina1}2l 'of the batter 'y E. l 0 I Should the 'lwrnraturewo'f. lreley move to retracted poetiomzthe ltrorible-uhell will sound becauseof thexeeteblishment iof a ourrent palth esffidllowenz iromzlternrmul 21 of battery A, ztlrroiugh cnnductonfsfl25, 29 land '82 to' one terminal lof -trouble shell from ithe otherxvtem niml of eeidl bell, through conductor 535 10 the: ermtll mre of relay 1G, ithroughsmitbzvrmature lend [its back stop and throughzcond-uctor ilfi towterxninal 23 of batteryA.

From the toregoing lit will be apparent that theibatteries simd lEhlre reciprocally emplo. ed rfor :the operation,- of the r u le Zbel'l *.theibattery A rbeing BIIkplQy ed in response :to impairments of! "the :battery E, :and ithelbmtteryEhcing empk1yed im response ltO *impmirmentszort the battery vA.

Should any one lost "the transmitting stations 16, G, 0 he operated, e oonneotion will be alternately clqsednmdflpenod between the conductorsfifi v50113.:2'11210:as to formulate the desired code signal in :a' well-known men-her. *Dwring each ":such closure the winding :of the relay .13 :(antl the' resistor J, if used) will:he:shonhcirouiteil, thereby permitting "the armatunezozf said relay to move *to retracted zpositiomand the magnet of relay will be efiectiwely errergi zed, thereby camsing "the armature of said relay to move to attracted qnosition. Szuch movement of:the (armature of B break the normal .clrmzent path through conductor also through resistor .Kyizf xusedr) and relay IG,--p.enmtttingfl;he :wrmmtmzemf said relay to move to retracted positien end will close 3; current path through conductor 187, between acondixctor mania the larrmatmre of said relay B permitting ls-uflicient -.emment "flow through tfihe windings 0f the im'wgaets of receiyingwtleviceeF F, F to cause eitectirze energization thereof,

n Eromlthe fonegoingitris appa nent that, .during bonnet-mime ihetween cerrd uobflrs 26 end 151311011 as maylae ceetablsiahegl "h batteries A and E, acting in parallel, will 'be applied to the terminals of the trouble bell H,-throughlthe respective current paths already described.-

hen devices employed in the receiving circuit require'the application of comparae f5 tively heavy currents .for substantial. periods of time (as, for example',,.when-low resist-.

ance horns or vibrating bells are employ -ed),"battery conditions may develop as a result of which the electromotive force of the current source of said circuit would decrease very rapidlyduring signaling closures, although such force, would disclose little change during normal test current flow, and such-' conditions may therefore cause serious impairment .of the receiving circuitinanifestations unless a su table force is so applied as to supplement that oft-he. receiving circuit current source.

The use of this invention, eitherwithor without a warning means, wills-overcome these battery conditions, as the action of relays D and G,-dur1ng. signaling closures,

'25 connects batteries A and E in parallel, and? the capacity of battery A is therefore available to supplement that of battery E, for

- the continuously effective energization of the receiving device circuit. v

Having fully described this invention -what I claim and desire to secure by Letters Patent of the United States is T:

1. A signal system comprising repeating mechanism including "circuit controlling means and electromagnetic -mechanism unresponsive to current flow of less than a cer- "tain predetermined intensity and arranged to cause functional actuation of said con trolling 111821118 111 response to current flow of greaterintensity; a transmitting circuit including said electromagnetic inechan1sm,

a current source, a relay arranged for effective energiza'tion in'iresponse to current flow in said circuit of less than the aforesaid predetermined intensity, and transm t- 1 ting stations. arranged to formulate signal- I ing impulses in said circuit by abnormal conditioning thereof to terminate effective energization of said relay, said circuit of such resistance so arranged that the cur rent flow normally induced by said current source will be only sufficientto assure effective energization of said relay and so that the current flow during the aforesaid. abnormal conditioningof said circuit will cause functional actuation of the controlling means of said repeating mechanism; a

' ceiving circuit of greater intensity,a relay arranged for effective energiz'ation in rereceiving circuit including a current source,

receiving devices unresponsive to current flow of less than a certain predetermined intensity and arranged for functional actuas ti'on in'response to current flowin said resp nse to currentfidw'insaid receiving cin- 'inechanism including means and electromagnetic mechanism unrecuit ofless intensity than thati'equired for the functionalg actuation of'said receiving dev1ces,jsa dreceiving c rcuit so connected tothe, circuit controlling means of said repeating mechanism and of such resistance and so arranged that, when said circuiticontrolling ,means, is in functionally actuated condition, said second named relay will not be 'effectivelyenergized andthe intensity of the current flow;througlr said receiving devicesjwill be sufiicient. to cause response thereof, and, when said circuit controlling means is not n functionally actuated con dition, the current flow induced by said second named current source will be only sufiicient to .assure effective GIIGIglZZItlOIl of said second named relay; and interconnections between the respective current sources andrelays of said circu ts whereby deenergization of said relays will effectparallel connection of said sources for the supply of said circuits. 7 r a 121 A signalsystem comprising repeat ng circuit controlling sponsive to current flowof less than a certain; predetermined ntensity and arranged -to [cause functional; actuation ofsaid concurrent source will be only suflicient to assure effective energization of said relay 'and sothatthe current flow during the aforesaidabnorinal conditioning of said circuit will cause functional actuationrof the controlling meansof said, repeating mechanism; a receiving circuit including a current source, receiving devices unresponsive to current flow of less than; a certain pre determined intensity and arrangedfor functional actuation in response to current flow in saidf'receiving; circuit of greater intensity, a relay arranged for effective energi- -zation in response to current flow in said receiving circuit of less intensity than that required for the' functional actuationcof said 'receivingjdevices, said receiving circuit so zjconnected'to the circuit controlling means of said repeating Eniechanismv and of such resistance and so arranged that, when said circuitcontrolling means is in functionally actua'ted'condition, saidsecond named relay will notibe effectively energized and the intens ty of the r ent QW thro gh'said r efrocally appliedgto'l said device.

a .mrangedcto icause tunctional .actuatiom of said llgianism, aLcurr-entasourcen'aa relaynarranged {cuit fen GfiBCtiVGrLBDELg-IZMIQII anienesponse iyqtq atermin W -stgnalingzeimpulsese ing said, .crrcuitby ab Y enormalconditioningthereohtostermmate ,ef-

I an ra m; c rc will bea "onlyisufiocienteto Las a s'a impfifl ztl ge fi sifrmefiectivo'xenergi-zatiomof:saaderelwy and c i1 ceiving devices will be sufficient to cause respective current sources and relays f said responsemthereofar21nd,:awhenaisaidg circuit circgitg b A t' --"controlling i meansi is not ;'in::,=sun0biQ1 ll-y z l 1 "n actuated condition, theicurrent' fin) ind ce 6 by said second;tname dncurrentu .soulzeet Wi be}only SilffiClIlUi-iiOlaflSSHlfi aeifectivie energization-:o'f=. saidosecond namedirel "xn xv sources mrderelwys oibsaids-eircuit loadeenergization 101i; said) relays we supply. ofs saiducircuits; and... warning de- '1 vicesoassociated witliysaidgg-m ..I GC H. 1Qti0I1s resp that the-ener-gycoafathe i sources may betr cipa i 33]? 1 cause; unetl 35Asignalusystemxrcomprisinqarepeating Lin mechanism lr; incli1ding c circuit ie-i-vcontrolling imeans and electromagnetic fnnechan sm 1111- .ia esponsive L .tolacurrent; flow 1' mi L yless c hana it I. 3 '7 0,certainmpredetermined ezintensityis and a -ii .1

-- controlling. Tmeans 1 rin-..;a response iton'acurrent flow :of: greater intensity ea .transmr mg -circuitaincludmg said. electromagneticiimecln f current flowein saide-icircuiti of less; than the relay gtransmittingrstationsgarrangedi'to ifiormulater ,the onrrent flovw nor-mall inducedg'hyxsaid,

Mug a tuan nia. the i ghgni u if,

so that the currentrflowidnring theiaforesaid v abnormal conditioning-loft isaidaczircwitii Willa; cause f-uHGtlGnfllL thctllatldi'llOfAthQwDHtlQlllIlg means oil said repeating mechanism; a receivn, ing-bireuit iiicludinghacurrent source, IGOGlVt-i- Q'AQUhtiQjEgQIfiflt ensiraaealar asing devices unresponsive to current flow of contacts and arra ged for effective energi less than a certain predetermined intensity zation in response to current flow in said and arranged for functional actuation in re receiving circuit of less intensity than that 45 sponse to current flow in said receiving cirrequired for the functional actuation of said cuit of greater intensity, a relay arranged receiving devices, said receiving circuit so for effective energization in response to curconnected to the circuit controlling means rent flow in said receiving circuit of less of said repeating mechanism and of such intensity than that required for the funcresistance and so arranged that, when said- 50 tional actuation of said receiving devices, circuit controlling means is in functionally said receiving circuit so connected to the actuated condition, saidsecond named relay circuit controlling means of said repeating will not be effectively energized and the in mechanism and of such resistance and so tensity of the current fiow through said rearranged that, when said circuit controlling ceiving devices will be sufiic-ient to cause means is in functionally actuated condition, response thereof, and, when said circuit consaid second named relay will not be eflectrolling means is not in functionally actuated tively energized and the intensity of the condition, the current flow induced by said current flow through said receiving devices second named current source will be only will be sufficient to cause responsethereof, sufficient to assure effective ener ization of not in functionally actuated condition, the interconnections between said current current flow induced by said second named sources, said relays and said warning device current source will be only suflicient to aswhereby one terminal of said warning desure eifective energization of said second vice is connected to one of the contacts of and, when said circuit controlling means is said second named relay; a warning device;

named relay interconnections between the each of said relays and the other terminal i of 'said warning device is connected to one of the terminals of each of said Current sources and the remaining terminal of themechanism including circuit controlling first named current source is connected with the remaining contact of the second named relay, and vice versa, respectively, whereby deenergization' of said relays Will efiect parallel connection of said sources for the supply of said circuits.

'5. A signal system comprising repeating means and electromagnetic, mechanism unrespons veto current flow of less than a certain predetermined intensity and arranged greater intensity a transmitting circuit 'in-- eluding said electromagnetic mechanism, a

current, source, a relay having two contacts of l thefcontrolling means-of said repeating mechanism; a'receiving circuit including a to cause functional actuation ofsaid controllingmeansin response to current fioW'of and 'arrang'ed' for' effective en'ergization in ranged that'the current flow-normally induced bysaid current source ,Will be only suflicient to' assure effective GIIBIglZ ZItlOIl of "said relay andso that the current flow dur-' ing the-aforesaid abnormal conditioning of said"circuit-' will cause functional actuation current source tlie electrom otive force'of which is substantially equivalent to that 'of I my name, thisz5th day of January, 1920.

vsaid first named current source, receiving delvic'es unresponsive to current flow of less than a certain predetermined intensity and arranged forfunctional actuation in re- ",sponse to current flow in saidreceiving circuit of greaterintensity,arelay having two contacts and arranged for effective ener-' gizationin response to current flow in said receiving circuit of less intensity than that required for the functional actuation of said receiving devices, said receiving circuit so connected to the circuit controlling means: of said repeating mechanism and of such resistanceandso arranged that, When said circuit controlling means is in functionally actuated condition, said second named relay will not be effectively energized and the iii-1' f tensity ofthe current flow through said receiving devices Will be suflicient=tocause response thereof, and, When said circuit controlling means is not in functionally actuated condition, the "current flow induced by;

said second named current sourcewill be only sufficient to assure efi'ective energiza- 'tion of said second named relay; a. Warning device; interconnections between, said ourtacts of each of said relays, and the other tei'minal-of'said Warning device is connected to one of the terminals of eachof saidcurrent sourcesandithe remaining terminal of the first named current source is connected with the remaining contactof the second named relay,ai 1d :vice versa,,=respectively,

= In Witness whereof, Ihe'reunto, subscribe *oiii RENoE E. BEACH;

rent sources, said relays-andsaid Warning-s device whereby onevterminal of said Warning-device is connected to'one of the con- 

